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authorMitch Williams <mitch.a.williams@intel.com>2019-04-24 05:20:48 -0700
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2019-06-14 12:59:16 -0700
commit97e42ef440a37efee0878625d18d22e57c3077cb (patch)
tree3c2471747ab731e4a0c7b10afb4c804d314df4cd /drivers
parentf031c7227a4af718455918d28e7431f89b94d006 (diff)
i40e: Use signed variable
The counter variable in i40e_clean_tx_irq starts out negative and climbs to 0. So it should not be defined as a u16. This was working by accident due to the fact the u16 overflows and underflows predictably. Replace the u16 with int, which is signed and can handle the negativity. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/intel/i40e/i40e_txrx.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 20a283702c9f..2a2fe3ec7926 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -774,7 +774,7 @@ void i40e_detect_recover_hung(struct i40e_vsi *vsi)
static bool i40e_clean_tx_irq(struct i40e_vsi *vsi,
struct i40e_ring *tx_ring, int napi_budget)
{
- u16 i = tx_ring->next_to_clean;
+ int i = tx_ring->next_to_clean;
struct i40e_tx_buffer *tx_buf;
struct i40e_tx_desc *tx_head;
struct i40e_tx_desc *tx_desc;